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🏔️ Ultra Index
Races

Forest Ultras

DEEP WOODS, TECHNICAL ROOTS, AND THE QUIET MAGIC OF RUNNING THROUGH ANCIENT FORESTS.

41 Races · 17 Countries

Backyard Ultra Belgium
Backyard (6.7km loops)
35 /100

25 APR 2026

Backyard Ultra Belgium

Retie, Belgium

challenging ↑50m 98% DNF trail
👥 4/5
Bandera 50K
50km
30 /100

8 MAY 2026

Bandera 50K

Bandera, United States

moderate ↑1,600m 8% DNF trail
⭐ 4/5 👥 5/5 ✓ First Ultra
Beast Runners Taiwan 100K
100km
54 /100

15 NOV 2026

Beast Runners Taiwan 100K

Nantou, Taiwan

challenging ↑5,000m 20% DNF trail
🏔 5/5
Blackwater 50
50 miles
37 /100

4 APR 2027

Blackwater 50

Davis, United States

moderate ↑2,400m 15% DNF trail
🏔 4/5 👥 4/5
Buffalo Stampede
75km
51 /100

11 APR 2026

Buffalo Stampede

Bright, Australia

challenging ↑4,000m 20% DNF trail
🏔 5/5
Capital Backyard Ultra
Last Person Standing
39 /100

15 AUG 2026

Capital Backyard Ultra

Canberra, Australia

challenging ↑80m 99% DNF trail
👥 4/5
Colombia Ultra Trail
50km
37 /100

12 JUL 2026

Colombia Ultra Trail

Salento, Colombia

moderate ↑2,000m 8% DNF trail
🏔 5/5 👥 4/5 ✓ First Ultra
Cordillera Mountain Ultra
50km
42 /100

2 JUL 2026

Cordillera Mountain Ultra

Baguio, Philippines

moderate ↑2,500m 10% DNF trail
🏔 5/5 👥 4/5 ✓ First Ultra
Courtney's Backyard Ultra
Last Person Standing
37 /100

25 JUL 2026

Courtney's Backyard Ultra

Durango, United States

challenging ↑120m 99% DNF trail
🏔 4/5 👥 5/5
Dalat Ultra Trail
100km
48 /100

14 MAR 2027

Dalat Ultra Trail

Dalat, Vietnam

challenging ↑4,200m 15% DNF trail
🏔 5/5 👥 5/5
EcoTrail Oslo
80km
31 /100

30 MAY 2026

EcoTrail Oslo

Oslo, Norway

moderate ↑2,200m 12% DNF trail
🏔 4/5 👥 5/5 ✓ First Ultra
El Cruce Columbia
100km / 3 stages
48 /100

12 AUG 2026

El Cruce Columbia

Villa La Angostura, Argentina

moderate ↑4,000m 10% DNF trail
🏔 5/5 ⭐ 4/5 👥 5/5
Gaoligong by UTMB
100km
52 /100

17 MAY 2026

Gaoligong by UTMB

Tengchong, China

challenging ↑5,500m 22% DNF trail
🏔 5/5 ⭐ 4/5
Georgia Death Race
68 miles / 109km
58 /100

21 MAR 2027

Georgia Death Race

Blairsville, United States

brutal ↑5,500m 25% DNF trail
🏔 5/5
Gorge Waterfalls 50K
50km
35 /100

12 APR 2026

Gorge Waterfalls 50K

Cascade Locks, United States

accessible ↑2,100m 7% DNF trail
🏔 4/5 👥 5/5 ✓ First Ultra
Grindstone 100
100 miles
51 /100

31 MAY 2026

Grindstone 100

Swoope, United States

brutal ↑6,700m 30% DNF trail
🏔 5/5 ⭐ 4/5
Hut2Hut Trail Run
52km
37 /100

14 MAR 2027

Hut2Hut Trail Run

Great Ocean Road, Australia

accessible ↑1,800m 8% DNF trail
🏔 5/5 👥 5/5 ✓ First Ultra
Karhunkierros Trail Ultra
82km
31 /100

8 AUG 2026

Karhunkierros Trail Ultra

Ruka, Finland

moderate ↑1,600m 12% DNF trail
🏔 4/5
Kepler Challenge
60km
36 /100

4 JUL 2026

Kepler Challenge

Te Anau, New Zealand

moderate ↑1,700m 10% DNF trail
🏔 5/5 ⭐ 4/5 👥 4/5
Kullamannen by UTMB
100 Miles (173km)
45 /100

12 APR 2026

Kullamannen by UTMB

Mölle, Sweden

brutal ↑2,300m 45% DNF trail
🏔 5/5 ⭐ 4/5 👥 4/5
Massanutten Mountain Trails 100
100 miles
52 /100

16 APR 2026

Massanutten Mountain Trails 100

Harrisonburg, United States

brutal ↑5,800m 30% DNF trail
🏔 4/5 ⭐ 4/5
Patagonia Run
100km
49 /100

25 APR 2026

Patagonia Run

San Martín de los Andes, Argentina

challenging ↑4,500m 22% DNF trail
🏔 5/5
Pinhoti 100
100 miles
41 /100

7 NOV 2026

Pinhoti 100

Sylacauga, United States

challenging ↑4,000m 22% DNF trail
⭐ 4/5 👥 4/5
Rio do Rastro Ultra
75km
46 /100

13 JUN 2026

Rio do Rastro Ultra

Urubici, Brazil

challenging ↑3,200m 18% DNF trail
🏔 5/5
Shiga Kogen Extreme Trail
80km
48 /100

6 MAY 2026

Shiga Kogen Extreme Trail

Shiga Kogen, Japan

challenging ↑4,500m 15% DNF trail
🏔 5/5
Stockholm Trail Run 50K
50km
18 /100

13 SEP 2026

Stockholm Trail Run 50K

Stockholm, Sweden

accessible ↑700m 5% DNF trail
🏔 5/5 👥 5/5 ✓ First Ultra
Superior 100
100 miles
47 /100

11 SEP 2026

Superior 100

Gooseberry Falls, United States

brutal ↑5,600m 30% DNF trail
🏔 5/5 ⭐ 4/5
Sweden Backyard Ultra
Backyard (Last Person Standing)
35 /100

17 APR 2026

Sweden Backyard Ultra

Borås, Sweden

challenging ↑60m 99% DNF trail
🏔 4/5 👥 5/5 ✓ First Ultra
Tarawera Ultramarathon 100 Mile
100 miles / 161km
46 /100

14 FEB 2027

Tarawera Ultramarathon 100 Mile

Rotorua, New Zealand

challenging ↑4,200m 20% DNF trail
🏔 5/5 ⭐ 4/5
Tarawera Ultramarathon 50K
50km
23 /100

14 FEB 2027

Tarawera Ultramarathon 50K

Rotorua, New Zealand

accessible ↑1,100m 5% DNF trail
🏔 5/5 ⭐ 4/5 👥 5/5 ✓ First Ultra
Thailand by UTMB
100km
57 /100

3 MAY 2026

Thailand by UTMB

Chiang Mai, Thailand

challenging ↑5,400m 18% DNF trail
🏔 5/5 ⭐ 4/5 👥 4/5
Ultra Selvagem
80km
38 /100

16 SEP 2026

Ultra Selvagem

Chapada dos Veadeiros, Brazil

challenging ↑3,000m 15% DNF trail
🏔 5/5 👥 4/5
Ultra-Trail Australia
100km
48 /100

17 MAY 2026

Ultra-Trail Australia

Katoomba, Australia

challenging ↑4,400m 18% DNF trail
🏔 5/5 ⭐ 5/5
Ultra-Trail Australia 50K
50km
33 /100

17 MAY 2026

Ultra-Trail Australia 50K

Katoomba, Australia

moderate ↑2,200m 10% DNF trail
🏔 5/5 ⭐ 4/5 👥 5/5 ✓ First Ultra
Ultra-Trail Mt. Aso Round Trail
100km
47 /100

2 MAY 2026

Ultra-Trail Mt. Aso Round Trail

Aso, Japan

moderate ↑4,400m 15% DNF trail
🏔 5/5 👥 4/5
Ultra-Trail Mt. Fuji
165km
58 /100

24 APR 2026

Ultra-Trail Mt. Fuji

Kawaguchiko, Japan

brutal ↑7,600m 30% DNF trail
🏔 5/5 ⭐ 5/5
Ultra-Trail Transylvania
100km
54 /100

22 MAY 2026

Ultra-Trail Transylvania

Bran, Romania

challenging ↑5,200m 20% DNF trail
🏔 5/5
Umstead 100
100 miles
34 /100

4 APR 2027

Umstead 100

Raleigh, United States

moderate ↑2,100m 15% DNF trail
⭐ 4/5 👥 5/5 ✓ First Ultra
Waldo 100K
100km
48 /100

15 AUG 2026

Waldo 100K

Oakridge, United States

challenging ↑4,300m 20% DNF trail
🏔 5/5
Waldo 50K
50km
35 /100

30 JAN 2027

Waldo 50K

Oakridge, United States

moderate ↑2,100m 8% DNF trail
🏔 5/5 ⭐ 4/5 👥 4/5 ✓ First Ultra
Way Too Cool 50K
50km
21 /100

7 MAR 2027

Way Too Cool 50K

Cool, United States

accessible ↑1,500m 5% DNF trail
🏔 4/5 ⭐ 4/5 👥 5/5 ✓ First Ultra

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